PHL - IDA

$198 Find Cheap Flights from Philadelphia to Idaho Falls - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$470
Typical prices: $474-$679
American Airlines
Fri 2/23Wed 2/28
PHL - IDA • 1 stop
Cheapest one-way
$198
Typical prices: $275-$392
Delta
Thu 10/18
PHL - IDA • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Philadelphia and Idaho Falls. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
December
Cheapest • 15% price drop
August
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Seattle/Tacoma Intl (SEA)
Cheapest • Avg $503 (round-trip)
Denver Intl (DEN)
Shortest trip • 7h 15m (one-way)
Insights
Insights
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Booking Insights
Flight Deals

Cheap Flights from Philadelphia to Idaho Falls (PHL-IDA)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Philadelphia to Idaho Falls

Tue, Feb 23 - Sun, Feb 28
American Airlines Logo
1:35 pm - 11:07 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
11h 32m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
1:48 pm - 12:41 amIDA  Idaho Falls Fanning Field-PHL Philadelphia
8h 53m1 stop Dallas/Fort Worth
$470American Airlines
Tue, Oct 27 - Fri, Oct 30
Alaska Airlines Logo
7:02 am - 3:20 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
10h 18m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:09 am - 5:38 pmIDA  Idaho Falls Fanning Field-PHL Philadelphia
9h 29m1 stop Seattle/Tacoma Intl
$487Alaska Airlines
Wed, Oct 21 - Sat, Oct 24
United Airlines Logo
10:05 am - 5:16 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
9h 11m1 stop Denver Intl
United Airlines Logo
2:28 pm - 11:20 pmIDA  Idaho Falls Fanning Field-PHL Philadelphia
6h 52m1 stop Denver Intl
$499United Airlines
Tue, Oct 20 - Sat, Oct 24
United Airlines Logo
10:05 am - 5:16 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
9h 11m1 stop Denver Intl
United Airlines Logo
2:28 pm - 11:20 pmIDA  Idaho Falls Fanning Field-PHL Philadelphia
6h 52m1 stop Denver Intl
$499United Airlines
Fri, Oct 16 - Sun, Oct 18
Delta Logo
7:20 am - 12:22 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
7h 02m1 stop Salt Lake City
Delta Logo
6:56 pm - 6:05 amIDA  Idaho Falls Fanning Field-PHL Philadelphia
9h 09m1 stop Salt Lake City
$541Delta
Mon, Oct 12 - Fri, Oct 16
Delta Logo
7:20 am - 12:22 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
7h 02m1 stop Salt Lake City
Delta Logo
6:56 pm - 6:05 amIDA  Idaho Falls Fanning Field-PHL Philadelphia
9h 09m1 stop Salt Lake City
$569Delta
Thu, Feb 11 - Mon, Feb 15
Alaska Airlines Logo
5:56 pm - 3:29 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
23h 33m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:03 pm - 4:56 pmIDA  Idaho Falls Fanning Field-PHL Philadelphia
22h 53m1 stop Seattle/Tacoma Intl
$579Alaska Airlines
Tue, Feb 23 - Sun, Feb 28
American Airlines Logo
1:34 pm - 11:07 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
11h 33m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl
American Airlines Logo
1:48 pm - 12:41 amIDA  Idaho Falls Fanning Field-PHL Philadelphia
8h 53m1 stop Dallas/Fort Worth
$598American Airlines
Sun, Oct 11 - Thu, Oct 15
American Airlines Logo
5:00 am - 1:09 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
10h 09m1 stop Dallas/Fort Worth
American Airlines Logo
1:50 pm - 12:12 amIDA  Idaho Falls Fanning Field-PHL Philadelphia
8h 22m1 stop Chicago O'Hare Intl
$611American Airlines
Sat, Mar 20 - Sun, Mar 28
Alaska Airlines Logo
7:00 am - 3:29 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
10h 29m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:03 pm - 5:55 amIDA  Idaho Falls Fanning Field-PHL Philadelphia
11h 52m1 stop Seattle/Tacoma Intl
$638Alaska Airlines
Booking Insights

Price, demand and travel trends for Philadelphia to Idaho Falls flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Philadelphia to Idaho Falls?

Round-trip flights from Philadelphia to Idaho Falls typically range from $474 to $679. The lowest price found in the past 5 days was $470, on American Airlines.

What's the cheapest day of the week to fly from Philadelphia to Idaho Falls?

Based on deals KAYAK users found in the last 12 months, Friday is the cheapest day of the week to fly from Philadelphia to Idaho Falls. It’s 8% cheaper than the average day, while Sunday is the most expensive, with prices 32% higher.

What’s the cheapest month to fly from Philadelphia to Idaho Falls?

•December is the cheapest month to fly from Philadelphia to Idaho Falls at $468 round-trip.
•October ($715) and July ($675) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 52% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for Philadelphia to Idaho Falls flights

Low season

January

Cheapest flight

$198
Beat the crowds with an average 79% drop in travelers.
The most popular month to fly with an average 169% increase in travelers.
One-way flight from Philadelphia to Idaho Falls

When to book flights from Philadelphia to Idaho Falls

Are your dates flexible? Find out the best times to travel from Philadelphia to Idaho Falls based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Philadelphia to Idaho Falls flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Philadelphia to Idaho Falls?

    Two cabin classes are available on flights from Philadelphia to Idaho Falls:

    • Economy Class
    • First Class

  • How long is a flight from Philadelphia to Idaho Falls?

    A nonstop flight from Philadelphia to Idaho Falls takes 00m, covering 1,899 miles.

  • Do I need a passport to fly from Philadelphia to Idaho Falls?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Philadelphia to Idaho Falls flight?

    Round-trip flights from Philadelphia to Idaho Falls range from $474 to $679, with an average of $552 over the past 12 months. Anything below $474 counts as a good deal.

  • Have flight prices from Philadelphia to Idaho Falls changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $470 to $2,108. That means the highest observed fare was about 4x higher than the lowest one.

  • How are flight prices from Philadelphia to Idaho Falls looking right now?

    One-way fares from Philadelphia to Idaho Falls are currently lower than usual. Average one-way flight prices are about $310, which is 18% below the typical average for this route.

  • What car rental options are available at Idaho Falls Fanning Field Airport (IDA)?

    Idaho Falls Fanning Field Airport (IDA) hosts 5 major car rental companies, with daily rates starting from around $34 for economy cars. Top options include:

    • Alamo
    • Hertz
    • Enterprise Rent-A-Car
    • Budget
    • National

  • Which airports can I use when flying from Philadelphia to Idaho Falls?

    Flights from Philadelphia to Idaho Falls usually depart from Philadelphia (PHL) and arrive at Idaho Falls Fanning Field (IDA).

  • Which airports do connecting flights from Philadelphia to Idaho Falls pass through?

    One-stop flights from Philadelphia to Idaho Falls most commonly connect through:

    • Denver Intl (DEN) - 40% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 27% of one-stop connections
    • Salt Lake City (SLC) - 18% of one-stop connections
    • Dallas/Fort Worth (DFW) - 7% of one-stop connections

  • Can I save money by using flexible dates for flights from Philadelphia to Idaho Falls?

    Yes. Flexible dates can save you up to 30% on flights from Philadelphia to Idaho Falls. Friday is the cheapest departure day at $511 round-trip on average, while Sunday is the most expensive at $730, a difference of $219.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Philadelphia to Idaho Falls?

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 7h 15m, compared with 7h 23m via Chicago O'Hare Intl (ORD) and 8h 17m via Dallas/Fort Worth (DFW).

  • What is the time difference between Philadelphia and Idaho Falls?

    Idaho Falls is 2 hours behind Philadelphia (Mountain Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking Philadelphia to Idaho Falls flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Friday departure and avoid flying on Sunday. On this route, Friday flights average $511, about $219 less than Sunday fares (30% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Philadelphia to Idaho Falls trip for December. Fares historically average $468 round-trip in that month - typically $247 less than the most expensive month, which is October (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Idaho Falls Fanning Field Airport.

    • Tru by Hilton Idaho Falls
    • Quality Inn Idaho Falls
    • Comfort Suites Idaho Falls

More options for your flight from Philadelphia to Idaho Falls

Complete your trip to Idaho Falls with a hotel stay or car rental

Car rentals in Idaho Falls
Hotels in Idaho Falls
Vacations in Idaho Falls